American Christopher Horner returned form injury to become the oldest cyclist to win a grand tour, raising inevitable questions about whether he did it clean.
A good deal of evidence points to Vincenzo Nibali having won the 2013 Giro d'Italia without doping. But a victory in today's scandal-weary peloton brings inevitable doubts.
In what could have been a trial of the decade, there have been more questions than answers in the Operacion Puerto case, writes Andrew Hood
Andy Hood gives us his best and worst picks from this year's Tour de France.
It will be up to the new generation of cyclists to save the sport from further demise. Andy Hood looks at the top young riders of the future.